Quantitative feeding sand shooting machine

Abstract

The utility model relates to the technical field of sand shooting machines, in particular to a quantitative feeding sand shooting machine which comprises a bottom plate, a telescopic electric cylinder is arranged on the bottom plate, a sand box is arranged at the telescopic end of the telescopic electric cylinder, a sand suction air pump is arranged at one end of the sand box, and the output end of the sand suction air pump is connected with a sand shooting pipe. A supporting column is further arranged on the bottom plate, a sand guiding funnel is arranged on the supporting column, a wedge-shaped discharging cavity is connected to the bottom of the sand guiding funnel, a feeding cavity is formed in the top of the sand box, a wedge-shaped sliding block is arranged between the wedge-shaped discharging cavity and the feeding cavity in a sliding mode, and a pressure spring is arranged on the inner wall of the bottom of the sand box. A pressure plate is arranged on the pressure spring, and a pressure sensor is arranged on the bottom outer wall of the sand box. The weight of sand grains in the sand box is sensed through the pressure sensor, and when the weight reaches a preset range, the telescopic electric cylinder is controlled to descend, so that the wedge-shaped sliding block is driven to slide inwards to prevent the sand grains from falling into the sand box, and quantitative feeding is achieved.

Description

Technical Field

[0001] This utility model mainly relates to the field of sand shooting machine technology, specifically a quantitative feeding sand shooting machine. Background Technology

[0002] Sandblasting machines fall under the category of air-conveying machinery. They utilize compressed air within a pipeline to transport sand particles from one location to another. During this process, kinetic energy is converted into potential energy, causing the high-speed moving sand particles to scour the surface of an object, thereby improving the surface quality.

[0003] Existing sandblasting machines generally require manual weighing of sand particles before adding them into the sand cylinder, as they cannot be automatically metered. This is inconvenient to use, and the sand particles tend to clump together when added, causing blockage of the sand guide funnel and reducing the stability of the sandblasting machine during operation. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative feeding sand shot machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quantitative feeding sand shot machine, comprising a base plate, a telescopic electric cylinder on the base plate, a sand box on the telescopic end of the telescopic electric cylinder, a sand suction pump on one end of the sand box, a sand shooting pipe connected to the output end of the sand suction pump, a support column on the base plate, a sand guide funnel on the support column, a wedge-shaped discharge chamber connected to the bottom of the sand guide funnel, a feeding chamber on the top of the sand box, a wedge-shaped slider slidably disposed between the wedge-shaped discharge chamber and the feeding chamber, a pressure spring on the inner wall of the bottom of the sand box, a pressure plate on the pressure spring, and a pressure sensor on the outer wall of the bottom of the sand box.

[0006] Preferably, a stirring cylinder is fixedly installed on the top of the sand guiding funnel, and a drive motor is installed at the center of the top of the stirring cylinder. The output end of the drive motor is inserted into the stirring cylinder and fixedly connected to a main shaft. Multiple sets of stirring rods are arranged axially on the outer wall of the main shaft. The top of the stirring cylinder has an opening and a loading groove. The stirring rods are driven by the drive motor to rotate and disperse the sand particles in the stirring cylinder, which then fall into the sand guiding funnel.

[0007] Furthermore, a limiting frame is provided on the bottom outer wall of the main shaft. The center of the limiting frame is a ring structure and is movably connected to the outer wall of the limiting frame. The outer part of the ring structure of the limiting frame is arranged in a circular array to form multiple rod-shaped structures, and the rod-shaped structures are fixedly connected to the inner wall of the sand guide funnel. The limiting frame structure limits the bottom end of the main shaft to prevent it from shaking.

[0008] Preferably, an opening is made on the outer wall of one side of the feeding chamber at a position corresponding to the sliding path of the wedge-shaped slider, and a receiving groove is fixedly provided. A return spring is fixedly provided in the receiving groove, and the other end of the return spring is fixedly connected to the wedge-shaped slider. The return spring rebounds the wedge-shaped slider, causing it to slide into the feeding chamber.

[0009] Furthermore, the bottom of the wedge-shaped discharge cavity matches the top of the wedge-shaped slider, and one side of the top of the feed cavity is recessed to accommodate the wedge-shaped slider sliding horizontally into the receiving groove. The side wall of the wedge-shaped discharge cavity near the receiving groove is aligned with the side wall of the feed cavity, and the remaining side walls of the wedge-shaped discharge cavity slide vertically against the inner wall of the feed cavity. The wedge-shaped discharge cavity and the wedge-shaped slider, which match each other, cause the feed cavity to rise and the wedge-shaped slider to slide outward. During the sliding process, the side walls of the wedge-shaped discharge cavity and the feed cavity that are aligned with each other cooperate to clamp the wedge-shaped slider to improve the sliding stability.

[0010] Preferably, a sand blowing fan is fixedly installed on the outer wall of the sand box on the side away from the sand suction pump. The air outlet of the sand blowing fan faces the sand suction pump, and the sand particles in the sand box are blown to the side close to the sand suction pump by the sand blowing fan for easy sand suction.

[0011] Preferably, the pressure sensors and pressure springs are of the same number and correspond one-to-one. A control console is provided on the base plate. The control console is connected to any one of the pressure sensors and the telescopic electric cylinder. The pressure sensors and pressure springs work together to sense the weight of the sand particles on the pressure plate, and the control console controls the telescopic electric cylinder to work.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model provides a quantitative feeding sand shot machine. It uses a pressure sensor and a pressure spring to sense the weight of sand particles in the sand box above the pressure plate. When the weight reaches a preset range, it controls the telescopic electric cylinder to descend, thereby driving the feeding chamber to descend. The wedge-shaped slider slides along the bottom of the wedge-shaped discharge chamber until it fully contacts the inner wall of the feeding chamber, thereby blocking the wedge-shaped discharge chamber and the feeding chamber to prevent sand particles from falling into the sand box. This achieves automated quantitative feeding and is easy to use.

[0014] This utility model provides a quantitative feeding sand shot machine, which adds a mixing and dispersing process by adding a mixing drum at the top of the sand guide funnel. After the sand particles fall into the mixing drum, the drive motor drives the mixing rod to rotate and disperse the sand particles in the mixing drum and fall into the sand guide funnel, thus avoiding the sand particles from clumping and clogging the sand guide funnel. The operation process is more stable.

[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of the present invention and other related contents, and should not be considered as limitations on the present invention.

[0017] In the accompanying drawings of the instruction manual:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure at point A of this utility model;

[0021] Figure 4 This is a side view of the overall structure of this utility model;

[0022] Figure label:

[0023] 1. Base plate; 2. Telescopic electric cylinder; 3. Sand box; 4. Support column; 5. Mixing drum; 6. Wedge-shaped discharge chamber; 7. Feed chamber; 8. Loading trough; 9. Sand suction pump; 10. Sand shooting pipe; 11. Pressure spring; 12. Pressure plate; 13. Sand guide funnel; 14. Drive motor; 15. Main shaft; 16. Mixing rod; 17. Limiting frame; 18. Wedge-shaped slider; 19. Receiving trough; 20. Return spring; 21. Pressure sensor; 22. Sand blowing fan; 23. Control console. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1 to 4 As shown, a quantitative feeding sand shot machine includes a base plate 1, on which a telescopic electric cylinder 2 is installed. A sand box 3 is installed on the telescopic end of the telescopic electric cylinder 2. A sand suction air pump 9 is installed at one end of the sand box 3. The output end of the sand suction air pump 9 is connected to a sand shooting pipe 10. Support columns 4 are also installed on the base plate 1. A sand guiding funnel 13 is installed on the support columns 4. There are four support columns 4, which together support the sand guiding funnel 13. A wedge-shaped discharge chamber 6 is connected to the bottom of the sand guiding funnel 13. A feeding chamber 7 is installed at the top of the sand box 3. A wedge-shaped slider 18 is slidably arranged between the wedge-shaped discharge chamber 6 and the feeding chamber 7.

[0027] A pressure spring 11 is installed on the inner bottom wall of the sand box 3, and a pressure plate 12 is installed on the pressure spring 11. A pressure sensor 21 is installed on the outer bottom wall of the sand box 3. There are four pressure sensors 21 and four pressure springs 11, and they correspond one-to-one. A control console 23 is installed on the bottom plate 1. The control console 23 is connected to any one of the pressure sensors 21 and the telescopic electric cylinder 2. The pressure sensor 21 and the pressure spring 11 work together to sense the weight of the sand particles on the pressure plate 12 at all times. The pressure sensor 21 is equipped with a signal transmission module to transmit the sensing result to the control console 23, and the control console 23 controls the telescopic electric cylinder 2 to work according to the sensing result. A sand blowing fan 22 is fixedly installed on the outer wall of the sand box 3 on the side away from the sand suction pump 9. The air outlet of the sand blowing fan 22 faces the sand suction pump 9. The sand blowing fan 22 blows the sand particles in the sand box 3 to the side close to the sand suction pump 9 for easy sand suction.

[0028] A stirring cylinder 5 is fixedly installed on the top of the sand guiding funnel 13. The inner diameter of the stirring cylinder 5 is the same as the inner diameter of the top of the sand guiding funnel. A drive motor 14 is installed at the center of the top of the stirring cylinder 5. The output end of the drive motor 14 is inserted into the stirring cylinder 5 and fixedly connected to a main shaft 15. Four sets of stirring rods 16 are arranged axially on the outer wall of the main shaft 15. Each set of stirring rods 16 includes two crossbars symmetrically inserted on the outer wall of the main shaft 15. The top of the stirring cylinder 5 has an opening and a loading groove 8. The drive motor 14 drives the stirring rods 16 to rotate and disperse the sand particles in the stirring cylinder 5, which then fall into the sand guiding funnel 13. A limiting frame 17 is provided on the bottom outer wall of the main shaft 15. The center of the limiting frame 17 is a ring structure and is movably connected to the outer wall of the limiting frame 17. The outer ring structure of the limiting frame 17 forms a circumferential array of multiple rod-shaped structures, and the rod-shaped structures are fixedly connected to the inner wall of the sand guide funnel 13. The structure of the limiting frame 17 limits the bottom end of the main shaft 15 to prevent it from shaking under the impact of falling sand particles.

[0029] An opening is made on the outer left side wall of the feeding chamber 7 at a position corresponding to the sliding path of the wedge slider 18, and a receiving groove 19 is fixedly provided. Two return springs 20 are fixedly provided in the receiving groove 19. The other end of the return spring 20 is fixedly connected to the wedge slider 18. The return spring 20 rebounds the wedge slider 18, causing the wedge slider 18 to slide into the feeding chamber 7. The bottom of the wedge-shaped discharge cavity 6 fits with the top of the wedge-shaped slider 18. The top left side of the feed cavity 7 is recessed to accommodate the wedge-shaped slider 18 to slide horizontally into the receiving groove 19. The left side wall of the wedge-shaped discharge cavity 6 is aligned with the left side wall of the feed cavity 7. The remaining side walls of the wedge-shaped discharge cavity 6 are pressed against the inner wall of the feed cavity 7 to slide vertically. The mutually fitting wedge-shaped discharge cavity 6 and wedge-shaped slider 18 cause the feed cavity 7 to rise and the wedge-shaped slider 18 to slide outward. During the sliding process, the left side walls of the wedge-shaped discharge cavity 6 and the feed cavity 7, which are aligned with each other, cooperate to clamp the wedge-shaped slider 18 to improve the sliding stability.

[0030] The implementation principle of this application embodiment is as follows: When using this device, the operator first controls the telescopic electric cylinder 2 to lift through the control console 23, and the wedge-shaped slider 18 slides into the receiving groove 19, so that the wedge-shaped discharge chamber 6 and the feeding chamber 7 are connected to each other. Then, sand is poured into the self-loading trough 8, and the drive motor 14 is started at the same time. During the process of falling along the mixing drum 5, the sand is dispersed by the mixing rod 16 to prevent agglomeration, and falls into the sand box 3 in sequence through the sand guide funnel 13, the wedge-shaped discharge chamber 6 and the feeding chamber 7. The sand accumulates on the pressure plate 12 and applies pressure to the pressure spring 11. The pressure sensor 21 senses the weight of the sand and transmits the sensing result to the control console 23. When the weight of the sand reaches a certain threshold, the control console 23 controls the telescopic electric cylinder 2 to descend, and the reset spring 20 automatically rebounds to make the wedge-shaped slider 18 separate the space between the wedge-shaped discharge chamber 6 and the feeding chamber 7, thereby realizing automatic quantitative feeding. After the sand is fed, the sand blowing fan 22 is started. The sand blowing fan 22 blows the sand towards the location of the sand suction pump 9 and then shoots it outward along the sand shooting pipe 10.

[0031] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from its essential characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A shot machine for dosing feed material, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a telescopic electric cylinder (2), the telescopic end of the telescopic electric cylinder (2) is provided with a sand box (3), one end of the sand box (3) is provided with a sand suction air pump (9), the output end of the sand suction air pump (9) is connected with a sand shooting pipe (10), the bottom plate (1) is further provided with a supporting column (4), the supporting column (4) is provided with a sand guide funnel (13), the bottom of the sand guide funnel (13) is connected with a wedge-shaped discharging cavity (6), the top of the sand box (3) is provided with a feeding cavity (7), the wedge-shaped discharging cavity (6) and the feeding cavity (7) are slidably provided with a wedge-shaped sliding block (18), the inner wall of the bottom of the sand box (3) is provided with a pressure spring (11), the pressure spring (11) is provided with a pressure plate (12), and the outer wall of the bottom of the sand box (3) is provided with a pressure sensor (21).

2. A sand charging machine for dosing sand according to claim 1, characterized in that: The top of the sand guide funnel (13) is fixedly provided with a stirring drum (5), the top center position of the stirring drum (5) is provided with a driving motor (14), the output end of the driving motor (14) is inserted into the stirring drum (5) and is fixedly connected with a main shaft (15), a plurality of groups of stirring rods (16) are arranged on the outer wall of the main shaft (15) in the axial direction, and the top of the stirring drum (5) is provided with a charging groove (8).

3. A metered shot machine according to claim 2, wherein: The outer wall of the bottom of the main shaft (15) is provided with a limiting frame (17), the center of the limiting frame (17) is in an annular structure and is movably connected with the outer wall of the limiting frame (17), the annular structure of the limiting frame (17) is externally arranged in a circumferential array to form a plurality of rod-shaped structures, and the rod-shaped structures are fixedly connected with the inner wall of the sand guide funnel (13).

4. A metered shot machine as defined in claim 1, wherein: The outer wall of one side of the feeding cavity (7) is provided with a containing groove (19) corresponding to the sliding path of the wedge-shaped sliding block (18), the containing groove (19) is fixedly provided with a reset spring (20) inside, and the other end of the reset spring (20) is fixedly connected with the wedge-shaped sliding block (18).

5. A metered shot machine according to claim 4, wherein: The bottom of the wedge-shaped discharging cavity (6) is matched with the top of the wedge-shaped sliding block (18), one side of the top of the feeding cavity (7) is concave to accommodate the horizontal sliding of the wedge-shaped sliding block (18) into the containing groove (19), one side wall of the wedge-shaped discharging cavity (6) close to the containing groove (19) is aligned with one side wall of the feeding cavity (7), and the remaining side walls of the wedge-shaped discharging cavity (6) are tightly abutted against the inner wall of the feeding cavity (7) to slide in the height direction.

6. A metered shot machine according to claim 1, wherein: The outer wall of the side of the sand box (3) away from the sand suction air pump (9) is fixedly provided with a sand blowing fan (22), and the air outlet of the sand blowing fan (22) faces the sand suction air pump (9).

7. A metering shot machine according to claim 1, wherein: The pressure sensor (21) and the pressure spring (11) are the same in number and one-to-one correspondence, the bottom plate (1) is provided with a control console (23), and the control console (23) is connected with any pressure sensor (21) and telescopic electric cylinder (2).

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